Array.prototype.find

The `find()` method returns the value of the first item in the array based on the result of the provided testing function.

Array.prototype.findIndex

The `findIndex()` method returns the index of the first element in the array that satisfies the provided testing function.

flat & flatMap array methods

Methods to flatten any sub-arrays found in an array by concatenating their elements.

Array.prototype.includes

Determines whether or not an array includes the given value, returning a boolean value (unlike `indexOf`).

ECMAScript 2015 (ES6)

Support for the ECMAScript 2015 specification. Features include Promises, Modules, Classes, Template Literals, Arrow Functions, Let and Const, Default Parameters, Generators, Destructuring Assignment, Rest & Spread, Map/Set & WeakMap/WeakSet and many more.

xmlhttprequest api: send: arraybufferview as parameter to send()

xmlhttprequest api: send: arraybuffer as parameter to send()

javascript built-in: arraybuffer: `arraybuffer()` constructor

javascript built-in: arraybuffer: `arraybuffer()` constructor: `maxbytelength` option

javascript built-in: arraybuffer: transfertofixedlength

javascript built-in: array: [symbol.iterator]

javascript built-in: array: [symbol.unscopables]

javascript built-in: array: `array()` constructor

javascript built-in: array: at

javascript built-in: array: concat

javascript built-in: array: every

javascript built-in: array: fill

javascript built-in: array: flat

javascript built-in: array: join

javascript built-in: array: keys

javascript built-in: array: map

javascript built-in: array: pop

javascript built-in: array: push

javascript built-in: array: shift

javascript built-in: array: slice

javascript built-in: array: some

javascript built-in: array: sort

javascript built-in: array: tolocalestring

javascript built-in: array: tolocalestring: `locales` parameter

javascript built-in: array: tolocalestring: `options` parameter

javascript built-in: array: toreversed

javascript built-in: array: tosorted

javascript built-in: array: tospliced

javascript built-in: array: tostring

javascript built-in: array: with

javascript built-in: typedarray: tolocalestring

javascript built-in: typedarray: toreversed

javascript built-in: typedarray: tosorted

javascript built-in: typedarray: tostring

javascript built-in: uint8array: tobase64

javascript built-in: uint8array: tohex